Mark Zuckerberg vs Alexander Otto: who is richer?
Mark Zuckerberg is richer, with a net worth of $209.7 billion versus Alexander Otto's $6.21 billion — a gap of $203.5 billion, or 34 times as much (as of November 7, 2026).
Mark Zuckerberg
Source of wealth: Facebook
$209.7B
Alexander Otto
Source of wealth: Real estate
$6.21B
Side-by-side
| Mark Zuckerberg | Alexander Otto | |
|---|---|---|
| Net worth | $209.7B | $6.21B |
| World rank | #5 | #676 |
| Makes per second | −$124 | −$63.07 |
| Makes per day | −$10.69M | −$5.45M |
| Today | +$1.72B | −$44.5M |
| Source of wealth | Real estate | |
| Age | 42 | 59 |
| Country | United States | Germany |
Net worth by year
| Year | Mark Zuckerberg | Alexander Otto |
|---|---|---|
| 2026 | $222B | $7.3B |
| 2025 | $216B | $9.4B |
| 2024 | $177B | $8.8B |
| 2023 | $64.4B | $9B |
| 2022 | $67.3B | $10.9B |
| 2021 | $97B | $11.8B |
| 2020 | $54.7B | $5B |
| 2019 | $62.3B | $10.7B |
| 2018 | $71B | $11.8B |
| 2017 | $56B | — |
| 2016 | $44.6B | — |
| 2015 | $33.4B | — |
Frequently asked questions
Who is richer, Mark Zuckerberg or Alexander Otto?
Mark Zuckerberg is richer, worth $209.7 billion compared with Alexander Otto's $6.21 billion. The difference is $203.5 billion.
Who makes more per second, Mark Zuckerberg or Alexander Otto?
Alexander Otto makes more: about −$63.07 per second versus −$124. Per day that's −$5.45M vs −$10.69M.
How many times richer is Mark Zuckerberg than Alexander Otto?
Mark Zuckerberg has about 34 times Alexander Otto's net worth.